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<html>
	<head>
		<meta charset="UTF-8">
		<title>折线</title>
	</head>
	<body>
		<svg width="100" height="50" viewBox="0 0 100 50">
			<polyline points="5 20, 20 20, 25 10, 35 10, 45 10, 55 30, 65 10, 75 30, 80 20, 95 20" style="stroke: black;stroke-width: 3;fill: none;" />
		</svg>
	</body>
</html>
